论文标题
厘米尺度的具有极敏性的杂种金属质量在可见的
A centimeter-scale achromatic hybrid metalens with polarization-insensitivity in the visible
论文作者
论文摘要
具有超紧凑性和CMOS兼容性的金属镜受到直径，数值孔径和工作波带之间的妥协的限制。为了解决这个问题，我们提出并在数值上证明了在440-700 nm的带中工作的厘米级跨表面反射杂交金属。在重新访问一般的Snell定律时，我们介绍了可以应用于任意表面类型的Plano-Convex折射镜头的色差校正跨表面的相位曲线。通过我们的半矢量方法模拟，设计的具有疗法的杂化金属可实现81％的色差抑制和极化不敏感性。进一步提供了混合金属的宽带成像结果，从而验证了设计的杂化金属的染色体。它可以在相机镜头和其他需要紧凑，高性能镜头的光学系统中找到应用。
Metalenses, featuring ultra-compactness and CMOS compatibility, are limited by the compromise between the diameter, numerical aperture, and working waveband. To address this problem, we propose and numerically demonstrate a centimeter-scale metasurface-refractive hybrid metalens working in the band of 440 - 700 nm. Revisiting the general Snell law, we present the phase profile of a chromatic aberration correction metasurface that can apply to a plano-convex refractive lens of an arbitrary surface type. Simulated by our semi-vector method, the designed achromatic hybrid metalens achieves 81% chromatic aberration suppression and polarization insensitivity. Broadband imaging results of the hybrid metalens are further provided, verifying the achromatism of the designed hybrid metalens. It can find applications in camera lenses and other optical systems that need compact, high-performance lenses.
